81.71T-XDWDM-R6-TP 10Gb/s Tunable DWDM XFP 80km...

81.71T-XDWDM-R6-TP

10Gb/s Tunable DWDM XFP 80km Transceiver

PRODUCT FEATURES

Supports 9.95Gb/s to 11.3Gb/s bit rates

Monolithically integrated full C-band tunable transmitter

50 GHz ITU channel spacing with integrated wavelength locker

C-band-tunable Laser and APD receiver

Maximum link length of 80km

Full Duplex LC connector

Hot-pluggable XFP footprint

Supports Line-side and XFI loopback

No Reference Clock required

Built-in digital diagnostic functions

Standard bail release mechanism

Power dissipation <3.5W

Case temperature range:0°C to 70°C

APPLICATIONS

DWDM 10GBASE-ZR/ZW 10G Ethernet

DWDM 80KM 10G Fiber Channel

DWDM SONET OC-192&SDH STM-64

Nexus Optix is a Telesource Services company | Bill Lawrence, Director of Data Network Sales | 800.525.4300 x2350 | [email protected]

PRODUCT DESCRIPTION

The tunable 10 Gb/s XFP transceiver is an integrated fiber optic transceiver that provides a high-speed

serial link at signaling rates from 9.95 Gb/s to 11.35 Gb/s. The module complies with the 10 Gigabit small

form factor pluggable (XFP) multisource agreement-MSA (INF-8077i) and Tunable XFP for ITU

Frequency Grid Applications（SFF-8477）.

It complies with the ITU-T G.698.1 standard with 50 GHz channel spacing for SONET/SDH, IEEE

DWDM 10GBASE-ZR for 80 km reach (Ethernet), and DWDM 10GFC for 80 km reach (Fiber Channel)

applications.

The transceiver integrates the receiver and transmit path on one module. On the transmit side, the 10 Gbps

serial data stream is recovered, retimed, and passed to a modulator driver. The modulator driver biases and

modulates a C-band-tunable integrated laser Mach-Zehnder (ILMZ), enabling data transmission over

single-mode fiber through an industry-standard LC connector. On the receiver side, the 10 Gbps data

stream is recovered from an APD/ trans-impedance amplifier, retimed, and passed to an output driver. This

module features a hot-pluggable XFI-compliant electrical interface.

PRODUCT SELECTION

Product part Number

Channel

number

Range of

channel(THZ)

Range of

wavelength(nm)

81.71T-XDWDM-R6-TP 82 191.95~196.00 1529.55~1561.83

81.71T-XDWDM-R6-TP-2 88 191.75~196.10 1528.77~1563.45

81.71T-XDWDM-R6-TP Wavelength Guide Pin Descriptions

Channel Wavelength

(nm) Frequency(THZ) Channel

Wavelength

(nm) Frequency (THZ)

1 1561.83 191.95 42 1545.32 194

2 1561.42 192 43 1544.92 194.05

3 1561.01 192.05 44 1544.53 194.1

4 1560.61 192.1 45 1544.13 194.15

5 1560.2 192.15 46 1543.73 194.2

6 1559.79 192.2 47 1543.33 194.25

7 1559.39 192.25 48 1542.94 194.3

8 1558.98 192.3 49 1542.54 194.35

9 1558.58 192.35 50 1542.14 194.4

10 1558.17 192.4 51 1541.75 194.45

11 1557.77 192.45 52 1541.35 194.5

12 1557.36 192.5 53 1540.95 194.55

13 1556.96 192.55 54 1540.56 194.6


14 1556.55 192.6 55 1540.16 194.65

15 1556.15 192.65 56 1539.77 194.7

16 1555.75 192.7 57 1539.37 194.75

17 1555.34 192.75 58 1538.98 194.8

18 1554.94 192.8 59 1538.58 194.85

19 1554.54 192.85 60 1538.19 194.9

20 1554.13 192.9 61 1537.79 194.95

21 1553.73 192.95 62 1537.4 195

22 1553.33 193 63 1537 195.05

23 1552.93 193.05 64 1536.61 195.1

24 1552.52 193.1 65 1536.22 195.15

25 1552.12 193.15 66 1535.82 195.2

26 1551.72 193.2 67 1535.43 195.25

27 1551.32 193.25 68 1535.04 195.3

28 1550.92 193.3 69 1534.64 195.35

29 1550.52 193.35 70 1534.25 195.4

30 1550.12 193.4 71 1533.86 195.45

31 1549.72 193.45 72 1533.47 195.5

32 1549.32 193.5 73 1533.07 195.55

33 1548.91 193.55 74 1532.68 195.6

34 1548.51 193.6 75 1532.29 195.65

35 1548.11 193.65 76 1531.9 195.7

36 1547.72 193.7 77 1531.51 195.75

37 1547.32 193.75 78 1531.12 195.8

38 1546.92 193.8 79 1530.72 195.85

39 1546.52 193.85 80 1530.33 195.9

40 1546.12 193.9 81 1529.94 195.95

41 1545.72 193.95 82 1529.55 196

Non-ITU Peak wavelength between

1529.55nm-1561.83nm

81.71T-XDWDM-R6-TP-2 Wavelength Guide Pin Descriptions

Channel Wavelength

(nm) Frequency(THZ) Channel

Wavelength

(nm) Frequency (THZ)

44 1546.12 193.9

1 1563.45 191.75 45 1545.72 193.95

2 1563.05 191.8 46 1545.32 194

3 1562.64 191.85 47 1544.92 194.05

4 1562.23 191.9 48 1544.53 194.1

5 1561.83 191.95 49 1544.13 194.15

6 1561.42 192 50 1543.73 194.2

7 1561.01 192.05 51 1543.33 194.25

8 1560.61 192.1 52 1542.94 194.3

9 1560.2 192.15 53 1542.54 194.35

10 1559.79 192.2 54 1542.14 194.4

11 1559.39 192.25 55 1541.75 194.45

12 1558.98 192.3 56 1541.35 194.5


13 1558.58 192.35 57 1540.95 194.55

14 1558.17 192.4 58 1540.56 194.6

15 1557.77 192.45 59 1540.16 194.65

16 1557.36 192.5 60 1539.77 194.7

17 1556.96 192.55 61 1539.37 194.75

18 1556.55 192.6 62 1538.98 194.8

19 1556.15 192.65 63 1538.58 194.85

20 1555.75 192.7 64 1538.19 194.9

21 1555.34 192.75 65 1537.79 194.95

22 1554.94 192.8 66 1537.4 195

23 1554.54 192.85 67 1537 195.05

24 1554.13 192.9 68 1536.61 195.1

25 1553.73 192.95 69 1536.22 195.15

26 1553.33 193 70 1535.82 195.2

27 1552.93 193.05 71 1535.43 195.25

28 1552.52 193.1 72 1535.04 195.3

29 1552.12 193.15 73 1534.64 195.35

30 1551.72 193.2 74 1534.25 195.4

31 1551.32 193.25 75 1533.86 195.45

32 1550.92 193.3 76 1533.47 195.5

33 1550.52 193.35 77 1533.07 195.55

34 1550.12 193.4 78 1532.68 195.6

35 1549.72 193.45 79 1532.29 195.65

36 1549.32 193.5 80 1531.9 195.7

37 1548.91 193.55 81 1531.51 195.75

38 1548.51 193.6 82 1531.12 195.8

39 1548.11 193.65 83 1530.72 195.85

40 1547.72 193.7 84 1530.33 195.9

41 1547.32 193.75 85 1529.94 195.95

42 1546.92 193.8 86 1529.55 196

43 1546.52 193.85 87 1529.16 196.05

Non-ITU Peak wavelength between

1528.77nm-1563.45nm 88 1528.77 196.1

Note：

1. When a tunable module is plugged in for the first time, it will go to a default channel, or Tx_DIS

asserted it will go to a standby condition. 81.71T-XDWDM-R6-TP default channel is 1561.83nm, with

channel range from 1 to 82, and 81.71T-XDWDM-R6-TP-2 default channel is 1563.45nm, compatible

with channel range from 1 to 88.

2.When the module is power cycled it will automatically go to the last channel selected, or Tx_DIS

asserted it will go to a standby condition. If Tx_DIS asserted, the last channel selected will be cleared,

and a valid new channel command will be required to set a channel.

3. If the Tx disabled and then re-enabled, the module returns to the last channel selected.


Ⅰ. Absolute Maximum Ratings

Parameter Symbol Min Typ Max Unit NOTE

Maximum Supply Voltage 1 Vcc3 -0.5 4.0 V

Maximum Supply Voltage 2 Vcc5 -0.5 6.0 V

Storage Temperature TS -40 85 °C

Case Operating Temperature Tcase 0 70 °C

II. Electrical Characteristics


Main Supply Voltage Vcc5 4.75 5.25 V

Supply Voltage #2 Vcc3 3.13 3.45 V

Supply Current – Vcc5 supply Icc5 350 mA

Supply Current – Vcc3 supply Icc3 450 mA

Module total power P 3.5 W 1

Transmitter Input differential impedance Rin 100 Ω 2

Differential data input swing Vin,pp 120 820 mV

Transmit Disable Voltage VD 2.0 Vcc V

Transmit Enable Voltage VEN GND GND+ 0.8 V Receiver Differential data output swing Vout,pp 340 650 850 mV 3

LOS Fault VLOS fault Vcc – 0.5 VccHOST V 4

LOS Normal VLOS norm GND GND+0.5 V 4

Notes: 1. Maximum total power value is specified across the full temperature and voltage range.

2. After internal AC coupling.

3. Into 100 ohms differential termination.

4. Loss Of Signal is open collector to be pulled up with a 4.7k – 10kohm resistor to 3.15 – 3.6V. Logic 0 indicates

normal operation; logic 1 indicates no signal detected.

Ⅲ. Optical Characteristics


Transmitter

Average Optical Power Pf -1 3 dBm

Wavelength range 1529.55 1561.83 nm 81.71T-XDWDM-R6-TP

1528.77 1563.45 nm 81.71T-XDWDM-R6-TP-2

Optical Wavelength λc λc -0.05 λc

+0.05 nm

Center Wavelength Spacing 50 GHz 1

Frequency stability (BOL) -1.5 1.5 GHz

Frequency stability (EOL) -2.5 2.5 GHz

Side mode Suppression ratio SMSR 30 dB

Optical Extinction Ratio ER 9 dB

Transmitter and Dispersion Penalty TDP 3 dB

Average Launch power of OFF transmitter POFF -30 dBm

Receiver Nexus Optix is a Telesource Services company | Bill Lawrence, Director of Data Network Sales | 800.525.4300 x2350 | [email protected]

Rx Sensitivity RSENS -24 dBm Back to back ,2

-21.5 Fiber(-300 to 1450ps/nm)

Input Saturation Power (Overload) Psat -7 dBm

Wavelength Range λC 1260 1600 nm

Receiver Reflectance Rrx -27 dB

LOS De-Assert LOSD -27 dBm

LOS Assert LOSA -37 dBm

LOS Hysteresis 0.5 dB

Notes: 1. Corresponds to approximately 0.4 nm.

2. Measured with worst ER; BER<10-12

with 10.3Gbps,231

– 1 PRBS.

Ⅳ. Pin Assignment

Diagram of Host Board Connector Block Pin Numbers and Name

Pin Logic Symbol Name/Description NOTE

1 GND Module Ground 1

2 VEE5 Optional –5.2 Power Supply – Not required

3 LVTTL-I Mod-Desel Module De-select; When held low allows the module to respond to 2-wire

serial interface commands

4 LVTTL-O Interrupt Interrupt (bar); Indicates presence of an important condition which can be

read over the serial 2-wire interface 2

5 LVTTL-I TX_DIS Transmitter Disable; Transmitter laser source turned off

6 VCC5 +5 Power Supply

7 GND Module Ground 1 Nexus Optix is a Telesource Services company | Bill Lawrence, Director of Data Network Sales | 800.525.4300 x2350 | [email protected]

8 VCC3 +3.3V Power Supply

9 VCC3 +3.3V Power Supply

10 LVTTL-I SCL Serial 2-wire interface clock 2

11 LVTTLI/O SDA Serial 2-wire interface data line 2

12 LVTTL-O Mod_Abs Module Absent; Indicates module is not present. Grounded in the module. 2

13 LVTTL-O Mod_NR Module Not Ready; defines it as a logical OR between RX_LOS and

Loss of Lock in TX/RX. 2

14 LVTTL-O RX_LOS Receiver Loss of Signal indicator 2



17 CML-O RD- Receiver inverted data output

18 CML-O RD+ Receiver non-inverted data output


20 VCC2 +1.8V Power Supply – Not required

21 LVTTL-I P_Down/RST Power Down; When high, places the module in the low power stand-by

mode and on the falling edge of P_Down initiates a module reset

Reset; The falling edge initiates a complete reset of the module including

the 2-wire serial interface, equivalent to a power cycle.

22 VCC2 +1.8V Power Supply – Not required


24 PECL-I RefCLK+ Reference Clock non-inverted input, AC coupled on the host board – Not

required 3

25 PECL-I RefCLK- Reference Clock inverted input, AC coupled on the host board – Not

required 3



28 CML-I TD- Transmitter inverted data input

29 CML-I TD+ Transmitter non-inverted data input


Notes:

1. Module circuit ground is isolated from module chassis ground within the module.

2. 2 Open collector; should be pulled up with 4.7k – 10kohms on host board to a voltage between 3.15V and 3.6V.

3. A Reference Clock input is not required by the XFP 80km tunable. If present, it will be ignored.

General Specifications

Parameter Symbol Min Typ Max Units NOTE

Bit Rate BR 9.95 11.3 Gb/s 1

Bit Error Ratio BER 10-12

2

Max. Supported Link Length LMAX 80 km 1

Notes:

1. 10GBASE-ZR/ZW

2. Tested with 231

– 1 PRBS


V. Digital Diagnostic Functions

As defined by the XFP MSA, XFP 80km tunable transceivers provide digital diagnostic functions via a

2-wire serial interface, which allows real-time access to the following operating parameters:

• Transceiver temperature

• Laser bias current

• Transmitted optical power

• Received optical power

• Transceiver supply voltage

It also provides a sophisticated system of alarm and warning flags, which may be used to alert end-users

when particular operating parameters are outside of a factory-set normal range.

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver

Controller inside the transceiver, which is accessed through the 2-wire serial interface. When the serial

protocol is activated, the serial clock signal (SCL pin) is generated by the host. The positive edge clocks

data into the XFP transceiver into those segments of its memory map that are not write-protected. The

negative edge clocks data from the XFP transceiver. The serial data signal (SDA pin) is bi-directional for

serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol

activation. The memories are organized as a series of 8-bit data words that can be addressed individually or

sequentially. The 2-wire serial interface provides sequential or random access to the 8 bit parameters,

addressed from 000h to the maximum address of the memory.

For more detailed information including memory map definitions, please see the XFP MSA Specification.


X X

FP two-wire serial digital diagnostic memory map


VI. Mechanical Specifications

The XFP transceivers are compliant with the dimensions defined by the XFP Multi-Sourcing Agreement

(MSA).

XFP Transceiver (dimensions are in mm)

VII. PCB Layout and Bezel Recommendations

XFP Host Board Mechanical Layout (dimensions are in mm)


XFP Detail Host Board Mechanical Layout (dimensions are in mm)


81.71T-XDWDM-R6-TP 10Gb/s Tunable DWDM XFP 80km...

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